September weather forecast
Dublin, IN

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Weather in September

September, the first month of the autumn in Dublin, is still a warm month, with an average temperature fluctuating between 56.7°F (13.7°C) and 74.7°F (23.7°C).

Temperature

With the advent of September, Dublin's high-temperatures adjust to a still warm 74.7°F (23.7°C), closely aligning with the preceding month. Dublin's nighttime temperature in September falls to an average of 56.7°F (13.7°C).

Humidity

In Dublin, the average relative humidity in September is 78%.

Rainfall

The month with the least rainfall is September, when the rain falls for 9.2 days and typically collects 0.47" (12mm) of precipitation.

Snowfall

In Dublin, snow does not fall in May through September.

Daylight

In September, the average length of the day in Dublin is 12h and 26min.
On the first day of September in Dublin, sunrise is at 7:09 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 7:24 pm EDT.

Sunshine

In Dublin, the average sunshine in September is 8.2h.

UV index

In Dublin, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

What is the usual temperature for Dublin in September?

An average high-temperature, in September, in Dublin, is 74.7°F (23.7°C) and the average low-temperature is 56.7°F (13.7°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in July is appraised at 86°F (30°C).

What is the average humidity in September in Dublin?

In Dublin, the average relative humidity in September is 78%.

What is the driest month in Dublin?

The month with the least rainfall in Dublin is September, when the rain falls for 9.2 days and typically collects 0.47" (12mm) of precipitation.

How many days does it rain in September in Dublin?

In Dublin, during September, the rain falls for 9.2 days and regularly aggregates up to 0.47" (12mm) of precipitation.

When it does not snow in Dublin?

May through September are months without snowfall in Dublin.

Does it snow in Dublin in September?

In Dublin, Indiana, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Dublin have in September?

In September, the average day length in Dublin is 12h and 26min.

What time are sunrise and sunset in September in Dublin?

In September, on the first day of the month, sunrise is at 7:09 am and sunset at 8:11 pm. On the last day of the month, in Dublin, sunrise is at 7:36 am and sunset at 7:24 pm EDT.

How long on average sun shines in September in Dublin?

The average sunshine duration in September in Dublin, Indiana, is 8.2h.

What is the UV index intensity in September in Dublin?

In Dublin, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Dublin, IN

Average temperature in September - Dublin, IN
  • Average high temperature in September: 74.7°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 56.7°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure in September
Dublin, IN

Average pressure in September - Dublin, IN
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Dublin, IN

Average wind speed in September - Dublin, IN
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in September
Dublin, IN

Average humidity in September - Dublin, IN
  • Average humidity in September: 78%

The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in September
Dublin, IN

Average rainfall in September - Dublin, IN
  • Average rainfall in September: 0.47"

The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is September (0.47").

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Average rainfall days in September
Dublin, IN

Average rainfall days in September - Dublin, IN
  • Average rainfall days in September: 9.2 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall in September
Dublin, IN

Average snowfall in September - Dublin, IN
  • Average snowfall in September: 0"

The months with the highest snowfall are January and February (0.55").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Dublin, IN

Average snowfall days in September - Dublin, IN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Dublin, IN

Average daylight in September / Average sunshine in September - Dublin, IN
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 8h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in September
Dublin, IN

Average sunshine days in September - Dublin, IN
  • Average sunshine days in September: 17.4 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is May (13.1 days).

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Average UV index in September
Dublin, IN

Average UV index in September - Dublin, IN
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Dublin, IN

Average cloud cover in September - Dublin, IN
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in September
Dublin, IN

Average visibility in September - Dublin, IN
  • Average visibility in September: 5mi

The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).

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Dublin, Indiana, USA

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